Developer Tools

Discover free online calculators and converters that work entirely in your browser without storing any data. Perfect for all your needs.

170+ free browser-based tools for PDF, images, converters, and developer utilities. 100% private, client-side WebAssembly processing.

Chrome extension to auto-fill forms with realistic test data

Access over 100 free, no-signup online tools for calculations, text utilities, and development, all focused on privacy and speed.

RouterBase routes 200+ AI models from OpenAI, Anthropic, Google, Meta and more through one OpenAI-compatible API — smart routing, fallback, unified billing.

A live feed of AI tools, news and discoveries.

65+ free developer tools in your browser. No install, no sign-up.

The flexible business backend for teams that ship fast.

Universal app kit for freelancers, agencies and startups.

Tailor your developer resume for each role